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Finding the Fourth Proportional to 34,481.80, 47,582.94 and 21,048.76

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Solution

The fourth proportional to 34,481.80, 47,582.94 and 21,048.76 is: 29,046.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,481.80 : 47,582.94 = 21,048.76 : x
  2. Step 2: Convert to fraction form
    34,481.80/47,582.94 = 21,048.76/x
  3. Step 3: Cross multiply
    34,481.80x = 47,582.94 × 21,048.76
  4. Step 4: Simplify right side
    34,481.80x = 1,001,561,884.15
  5. Step 5: Solve for x
    x = 1,001,561,884.15/34,481.80
  6. Step 6: Final answer
    x = 29,046.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.